Biliary sludge
Gallbladder sludge: Symptoms, causes, and treatments Biliary sludge, also known as microlithiasis, refers to a viscous mixture of particulate matter and bile that can form in the gallbladder. This mixture often consists of cholesterol crystals, calcium salts, and bilirubin pigment, along with other components of bile. While not solid like gallstones, biliary sludge can lead to similar symptoms and complications and is considered a precursor to the formation of gallstones. Book Gallbladder and Liver Ultrasound Causes and Risk Factors The exact cause of biliary sludge is not entirely understood, but it is believed to result from changes in the composition of bile or gallbladder motility. Factors that may contribute to the formation of biliary sludge include: Pregnancy: Hormonal changes can affect bile composition. Rapid weight loss: Especially from very low-calorie diets or after bariatric surgery. Certain medications: Such as ceftriaxone and octreotide. Prolonged fasting or total parenteral nutrition (TPN): This